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Finding the Fourth Proportional to 545,909.40, 818,718.30 and 166,829.40

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Solution

The fourth proportional to 545,909.40, 818,718.30 and 166,829.40 is: 250,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,909.40 : 818,718.30 = 166,829.40 : x
  2. Step 2: Convert to fraction form
    545,909.40/818,718.30 = 166,829.40/x
  3. Step 3: Cross multiply
    545,909.40x = 818,718.30 × 166,829.40
  4. Step 4: Simplify right side
    545,909.40x = 136,586,282,758.02
  5. Step 5: Solve for x
    x = 136,586,282,758.02/545,909.40
  6. Step 6: Final answer
    x = 250,199.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.